This is the Great Planes ElectriFly RimFire 1.20
50-65-450 Brushless Outrunner Electric Motor.

FEATURES

For Sport airplanes up to 14.5lbs (6520g) and 3D airplanes up to
9lbs (4080g)
Designed for explosive acceleration and maximum torque eliminating
the need for a gearbox
Lightened aluminum can houses high torque rare earth Neodymium
magnets
Double shielded bearings
Virtually maintenance-free; no commutators or brushes to wear out
Two year quality guarantee